verilog编写的248分频器

代码实现了一个根升余弦成型滤波器，2PAM信号通过此成型滤波器，并且匹配接收，画出了发送和接收波形，验证了代码的正确性。(The code designs a root raised cosine filter,2PAM signal transmitted through the filter and matched using the same filter, I plot the transmitted signal and received signal to verify the correctness of the code.)

利用stm32F407实现的等精度测频，可以精确测量频率，误差很小(The equal precision frequency measurement realized by stm32F407 can accurately measure frequency with little error.)

verilog编写的GPS /BD基带逻辑代码，包含跟踪相关部分代码，有比较好的借鉴意义。

说明：  基于Basy3的贪吃蛇小游戏，实现了相关功能。(Snake Eating Game Based on Basy3)

一份带有FIFO缓存的UART源码，采用verilog编写，实现批量数据的传输，数据缓存量可以通过修改源码中的FIFO的深度来改变。(This is a UART with FIFO. The UART is programmed using verilog, it can transmit or receive batch data. The amount of data buffered can be changed by changing the depth of FIFO.)

verilog编写的数字信号发生器NCO用CORDIC方法实现产生sin cos信号，流水线结构，简单实用。(verilog prepared by the digital signal generator NCO using CORDIC method implementation generate sin cos signal, pipelined architecture, simple and practical。)

Fully parametrizable combinatorial parallel LFSR/CRC module. Implements an unrolled LFSR next state computation. Includes full MyHDL testbench.

FPGA的测频程序，用了D触发器，能测1hz到几百hz(FPGA frequency measurement procedures, using a D flip-flop, can be measured to a few hundred hz 1hz)

应用背景i2cSlave is a minimalist I2C slave IP core that provides the basic framework for the implementation of custom I2C slave devices. The core provides a means to read and write up to 256 8-byte registers. These registers can be connected to the users custom logic, thus implementing a simple control and status interface.关键技术The core has up 256 registers that can be accessed via I2C. I2C write operations are used to set the register address pointer, and write the register data. I2C reads are used to read the register data. Successive data reads or writes result in data being read or written from incremental register addresses. There is no limit on how much data can be read or written in a single access, but the internal register address pointer will wrap round to 0 once it reaches 255. Note that the address pointer is not initialized at reset, and the address pointer must

SDRAM驱动器，自己项目利用的，已经经过实际验证(sdram controller)